module main

import veb

@['/:username/feed']
pub fn (mut app App) user_feed_default(mut ctx Context, username string) veb.Result {
    return app.user_feed(mut ctx, username, '0')
}

@['/:username/feed/:page']
pub fn (mut app App) user_feed(mut ctx Context, username string, page string) veb.Result {
    exists, user := app.check_username(username)

    if !exists || ctx.user.username != user.username {
        return ctx.not_found()
    }

    page_i := page.int()
    user_id := ctx.user.id
    item_count := app.get_feed_items_count(user_id)
    offset := feed_items_per_page * page_i
    page_count := calculate_pages(item_count, feed_items_per_page)
    is_first_page := check_first_page(page_i)
    is_last_page := check_last_page(item_count, offset, feed_items_per_page)
    prev_page, next_page := generate_prev_next_pages(page_i)

    feed := app.build_user_feed_as_page(user_id, offset)
    mut items_start_day_group := []int{}
    mut last_unique_date := ''

    for item in feed {
        item_ymmdd := item.created_at.ymmdd()

        if item_ymmdd != last_unique_date {
            items_start_day_group << item.id

            last_unique_date = item_ymmdd
        }
    }

    return $veb.html()
}